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4 years ago

10

Is -2 + 4y +2=8x a direct variation equation

1 answer:

Anna35 [415]4 years ago

7 0

Direct variation

Explanation:

Given –2 + 4y + 2 = 8x.

To find the given expression –2 + 4y + 2 = 8x is direct variation or not.

If y varies directly as x, then y = kx.

If y varies inversely as x, then $y=\frac{k}{x}$

⇒ –2 + 4y + 2 = 8x

Combine like terms together.

⇒ –2 + 2 + 4y = 8x

⇒ 4y = 8x

Divide both sides of the equation by 4, we get

⇒ y = 2x

Which is in the format of y = kx.

Thus y varies directly as x.

Hence, –2 + 4y + 2 = 8x is direct variation.

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Step-by-step explanation:

Both figures make up congruent squares, and they are made up of 4 congruent triangles, so the white area in between must be equal between the two figures

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3 years ago

The Pirerras are planning to go to Europe 3 years from now and have agreed to set aside $140/month for their trip. If they depos

Natalka [10]

Answer:

(a)$5805.21

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Step-by-step explanation:

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Therefore: Monthly Rate=0.095/12

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(b)For the Johnsons, Present value of Mortgage is derived using the formula:

$\Text{Present Lump Sum}, A_0=\dfrac{P[1-(1+i)^{-kt}]}{\frac{r}{k} }$

At $1000 Monthly payment

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Adding a down payment of $16000

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At $1300 Monthly Payment

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3 years ago

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Step-by-step explanation:

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3 years ago

1) Jo Anne needs to do a speech in her English class that can't be more than 4 minutes

djyliett [7]

Answer:

( 0 < y < 23 / 6 ) mins

Step-by-step explanation:

Solution:-

We will define a variable ( x ) as the time it took for Jo Anne to give her speech at home.

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$10 s * \frac{min}{60 s} = \frac{1}{6} min$

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4 years ago

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Sveta_85 [38]

Answer: The answer would be

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Step-by-step explanation:

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3 years ago

Read 2 more answers